title: Optical Hash function based on two-beam interference.
abstract: An approach for constructing an optical Hash function, also known as a one-way cryptosystem, based on two-beam interference (OHF-TBI) is proposed. The purpose of this method is creating the "digital fingerprint" of any precoding message with arbitrary length. This approach consists of three steps, in which the main step is a one-way processing procedure with a compression mechanism. To achieve the function of one-way property and compressibility, we designed a cascaded process on the basis of the two-beam interference principle and phase-truncation operation. The performance of the mentioned OHF-TBI is verified by theoretical analysis and a set of numerical simulations.
authors.forename: Hongji
authors.initials: H
authors.lastname: Lai
authors.forename: Wenqi
authors.initials: W
authors.lastname: He
authors.forename: Xiang
authors.initials: X
authors.lastname: Peng